Minerva No. 1 mine, Hardin Co., Illinois, USA - Colorless spiky crystals of calcite measuring to 2.5 cm in height coming off this matrix. Some of the crystals show cleaving. Overall size is 10.5 x 10.0 x 5.0 cm.

San Giovanni Mine, Punta della Torre, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy - An esthetic specimen of calcite from this famous mine. The specimen hosts a great amount of bright calcite crystals, grouped forming clusters ! Very nice and typical from San Giovanni mine. Overall size is 13x8x6 cm. Weight is 515 gr.

Acquaresi Mine, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy - A classic from sardinia mines. The specimen hosts a well shaped biterminated calcite crystals of 2.9 cm in size on a carpet of microcrystals of Galena. Size: 7 × 3.5 × 4.5 cm. Weight: 120.00gr

NChwaning II Mine, Kuruman, North Cape Province, South Africa - Very nice and rich specimen of calcite crystals ! The crystal on the back are light pink. In the average the calcites are up to 1 cm and they form nice clusters that emerge from the specimen. The whole specimen shows a very nice fluorescence under UV ! Overall size is 10x8x3 cm.  Weight is 225 gr.

ELMWOOD MINE, SMITH CO., TN, USA - Real nice terminated calcite crystal of 5.5 cm that seats on a small sphalerite matrix. Overall size is 5.5x4x4 cm.

Sweetwater  Mine, Missouri, USA - Colorless to very pale yellowish translucent semi-lustrous prismatic crystals of calcite to 3.7 cm in length set attractively over the top of a 9.5 x 5.5 x 5.0 cm pyrite, chalcopyrite, and dolomite crystal matrix. Very minimal micro-cleaving present, this is in very good condition and sits very nicely by itself for display.

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Well shaped bi-terminated calcite crystal of 3.7 cm stands on this matrix coated by dolomite and chalcopyrite crystals. Nice rock of 8x3.7x1.8 cm

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Very nice cluster of terminated calcite crystals on a coat of tiny dolomites and chalcopyrites. The calcite are all terminated and 2.5-3.5 cm in size. Overall size is 8x2.5x1.8 cm

Fletcher mine, Viburnum Trend, Reynolds Co., Missouri, USA - A classic calcite specimen from this locality. The calcite is biterminated and 2.8 cm in size and sits on a matrix formed by a rich coating of chalcopyrites and dolomite with siegenite ! Nice combination specimen of 3.5x3.5x3 cm

Kimbedi, Mindouli District, Pool Region, Congo (Republic) - Green crystals studded with small balls of yellow mimetite. There are several crystals of dioptase on this rock ! Their size is up to 0.9 cm ! Overall size is 6.5x3.5x2 cm. Weight is 50 gr